Enhanced U(VI) separation from aqueous solution with plasma-reduced nZV Fe/Ni doped biochar: Performance and mechanism

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 131404 - 131404

Опубликована: Янв. 1, 2025

Язык: Английский

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Recent advancement in nanomaterials for the detection and removal of uranium: A review

Environmental Research, Год журнала: 2023, Номер 234, С. 116536 - 116536

Опубликована: Июль 1, 2023

Язык: Английский

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Facile synthesis of TiO2-PAN photocatalytic membrane with excellent photocatalytic performance for uranium extraction from seawater

Separation and Purification Technology, Год журнала: 2023, Номер 328, С. 125026 - 125026

Опубликована: Сен. 9, 2023

Язык: Английский

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Adsorption removal of uranium from aqueous solution by hydroxyapatite: Recent advances and prospects

Annals of Nuclear Energy, Год журнала: 2024, Номер 206, С. 110609 - 110609

Опубликована: Май 11, 2024

Язык: Английский

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Global research trends of uranium-containing wastewater treatment based on bibliometric review

Journal of Environmental Management, Год журнала: 2024, Номер 354, С. 120310 - 120310

Опубликована: Фев. 19, 2024

Язык: Английский

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Polyethyleneimine and chitosan incorporated winter melon-derived biochar composite gels for highly selective capture of uranium(VI)

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер 699, С. 134719 - 134719

Опубликована: Июль 3, 2024

Язык: Английский

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Enhanced Photocatalytic Removal of U(VI) from Real Radioactive Wastewater by Modulating the Surface Charge Microenvironment in Porphyrin-Based Hydrogen-Bonded Organic Framework

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(26), С. 33657 - 33668

Опубликована: Июнь 21, 2024

Reduction of soluble U(VI) to insoluble U(IV) based on photocatalysts is a simple, environmentally friendly, and efficient method for treating radioactive wastewater. The present study involved the systematic comparison photoelectric properties three metalloporphyrins with different metal centers synthesis novel porphyrin-based hydrogen-bonded organic framework (Ni-pHOF) photocatalyst by modulating surface charge microenvironment in porphyrin enhanced photocatalytic removal from Compared metal-free HOF, around Ni atom Ni-pHOF accelerated reduction kinetics under visible light illumination at initial moment, showing high rate, even air. rate aqueous solution can achieve over 98% presence coexisting nonoxidizing cations only decreased less than 8% after five cycles, exhibiting selectivity good reusability. Furthermore, remove 86.74% real low-level wastewater 120 min illumination, showcasing practical application potential. Density functional theory (DFT) calculations electron paramagnetic resonance (EPR) spectra indicated that through metallization conducive improving separation efficiency, prompting more e– •O2– participate reaction U(VI). This work provides new insights into HOFs paves way tailoring HOFs/COFs recovery

Язык: Английский

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Constructing Stable Nitrogen-Rich Core–Shell CdS@MC for Photocatalytic Reduction of U(VI) in Air without Sacrificial Agent

Inorganic Chemistry, Год журнала: 2024, Номер 63(42), С. 19991 - 20002

Опубликована: Окт. 10, 2024

Photocatalytic reduction of uranium from U(VI) to U(IV) has been recognized as an effective treatment method for wastewater. However, most photocatalysts have be reduced under inert gas and sacrificial agent. Here, a class nitrogen-rich core-shell (CdS@MC) with high stability was successfully prepared by modifying CdS melamine cyanuric chloride condensation. When the initial concentration 100 mg/L solid-liquid ratio 0.2 g/L, removal CdS@MC without agent air could reached 95%. The rate still above 80% after five cycles good at salt concentration. not only efficiently generates electrons photocatalytic U(VI), but also H

Язык: Английский

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Enhanced uranium separation by charge enabling γ-MnO2 with oxygen vacancies

Journal of Hazardous Materials, Год журнала: 2023, Номер 459, С. 132112 - 132112

Опубликована: Июль 22, 2023

Язык: Английский

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Biaxial Stretching to Prepare the Membrane Adsorbent to Achieve the Ultrafast Adsorption of Uranium from Seawater

ACS Applied Engineering Materials, Год журнала: 2024, Номер 2(3), С. 762 - 771

Опубликована: Март 12, 2024

An ultrathin polyethylene nanofibrous membrane (UTPENFM) substrate with a large specific surface area was prepared by biaxial stretching, and the modified UTPENFM adsorbent, called AO–UTPENFM, successfully two-step grafting method. By adjusting pore structure of matrix material functional groups can be exposed to maximum extent on layer so as realize rapid adsorption process uranium. Herein, in simulated seawater uranium concentration 8 ppm, capacity is 172.88 mg/g for 6 h. Meanwhile, 3.38 natural 7 days, which indicates that UTPENFM-g-PHEA-(PAO-co-PAA) (AO–UTPENFM) an ultrafast process. The its higher larger structure, provides abundant space entry uranyl ions, accelerate rate uranium, indicating AO–UTPENFM promising adsorbent extraction from seawater. These findings provide insights into bode well potential using polymer-based adsorbents.

Язык: Английский

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